Bug ID 1574521: Intermittent high ICMP latency on R4000 and R2000 tenants

Last Modified: Apr 28, 2025

Affected Product(s):
BIG-IP F5OS-A, LTM, TMOS, Velos(all modules)

Known Affected Versions:
15.1.10.4, 15.1.10.5, 15.1.10.6

Opened: Mar 29, 2024

Severity: 5-Cosmetic

Symptoms

When compared to previous platforms, BIG-IP tenants on R4000 and R2000 platforms may demonstrate higher ICMP latency. This is because the r4000 and r2000 appliances have a slightly different hardware architecture than other appliances. CPUs on this platform are not dedicated to the tenant and these platforms also run a different class of Intel processing, and do not utilize hyperthreading like the higher end platforms do. https://clouddocs.f5.com/training/community/rseries-training/html/rseries_performance_and_sizing.html

Impact

High ICMP latency and jitter can be observed.

Conditions

BIG-IP tenants on R4000 and R2000 platforms

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips